860年代，拜占庭帝国开始从阿拉伯人的入侵中恢复，因此到872年，与阿拔斯王朝的军事平衡永久地成为帝国的优势。
In the 860's the Byzantine Empire began to recover from Arab incursions so that by 872 the military balance with the Abbasid Caliphate had been permanently altered in the empire's favor.
这个设备和支持销售计划将不会改变该地区的基本军事平衡。
The proposed sale of this equipment and support will not alter the basic military balance in the region.
俄罗斯强烈反对这两国加入北约，认为此举是对俄安全的直接挑衅并将威胁到欧洲地区军事平衡。
Russia is fiercely opposed to NATO plans to grant membership to the two nations, saying such a move would pose a direct threat to its security and endanger the fragile balance of forces in Europe.
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